Flue gas system
Dimensioning cascade
14
Cascade system
For installing the R40 in cascade
instal
lations, dedicated flue systems are
defi
ned and available in 150mm and
200mm diameter, both for line and back
-2-back installations.
The diameter of the horizontal collector
and the vertical chimney depends on
the total heat input of the installation
and the vertical height of the chimney.
The table shows the maximum system
input related to the vertical chimney
length (based on max. 3m horizontal
length after collector) and diameter
(collector/chimney).
Max. boiler input (kW) by vertical chimney length
and diameter (collector/chimney)
Diameter
Chimney height
5m
15m
30m
150/150mm
327
313
288
150/200mm
450
412
370
200/200mm
530
500
482
200/250mm
697
675
646
200/300mm
855
835
797
Calculation based on max. 3m horizontal flue
Cascade collector line
Cascade collector back-2-back